Solar calculators built for real decisions
Estimate system size, generation, savings, payback and backup needs with transparent assumptions. Then validate tariffs, export settlement, charges, eligibility and site constraints before you buy or sign.
Home rooftop
Bill/tariff-based estimate with self-consumption, export credit assumptions and optional central CFA indicator.
C&I economics
Consumption and export-settlement estimate for offices, shops, facilities and industrial loads.
Pump & irrigation
Pump energy and indicative solar capacity based on operating hours, motor efficiency and yield assumptions.
Battery planning
Backup energy, nominal battery capacity and indicative battery cost for critical-load scenarios.
State/DISCOM policy reference
Select a state to view published tariff/export records. Applying a verified tariff can prefill relevant inputs; always confirm the active order, fixed charges and project applicability.
Home rooftop
Choose a preset, adjust assumptions, and calculate. Inputs stay editable.
Your usage
System design
Export & settlement
Cost & maintenance
Your estimate
Review key metrics, projection and assumptions before using the estimate.
Ready for your estimate
Set inputs or choose a preset, then calculate to see indicative capacity, savings, cost and assumptions for Home rooftop.
ⓘ Estimates are indicative, not a quotation, subsidy approval or engineering design. Verify tariffs, charges, export settlement, eligibility and site conditions before acting.
Validate inputs before you act
Cross-check state/DISCOM policy, official scheme rules and a qualified site survey. Outputs are not quotations, approvals or legal advice.
Happy with your estimate? Let's make it real.
Share your figures with us and we'll match you with a certified installer, help you claim the PM Surya Ghar subsidy and guide you through the DISCOM process.